From fbd7e7ac6db3db8bccf3210d23b5a2a66471c538 Mon Sep 17 00:00:00 2001 From: Avinash Patil Date: Thu, 3 Jan 2013 21:21:31 -0800 Subject: mwifiex: flush TX ring for PCIe after disconnect or bss stop This patch adds handler to clean PCIe TX rings after disconnect or bss stop is called for PCIe based mwifiex driver. Signed-off-by: Avinash Patil Signed-off-by: Bing Zhao Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/pcie.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'drivers/net/wireless/mwifiex/pcie.h') diff --git a/drivers/net/wireless/mwifiex/pcie.h b/drivers/net/wireless/mwifiex/pcie.h index 87201f554d2e..24a39b32a222 100644 --- a/drivers/net/wireless/mwifiex/pcie.h +++ b/drivers/net/wireless/mwifiex/pcie.h @@ -114,6 +114,7 @@ struct pcie_service_card { struct pci_dev *dev; struct mwifiex_adapter *adapter; + u8 txbd_flush; u32 txbd_wrptr; u32 txbd_rdptr; u32 txbd_ring_size; @@ -146,4 +147,16 @@ struct pcie_service_card { void __iomem *pci_mmap1; }; +static inline int +mwifiex_pcie_txbd_empty(struct pcie_service_card *card, u32 rdptr) +{ + if (((card->txbd_wrptr & MWIFIEX_TXBD_MASK) == + (rdptr & MWIFIEX_TXBD_MASK)) && + ((card->txbd_wrptr & MWIFIEX_BD_FLAG_ROLLOVER_IND) != + (rdptr & MWIFIEX_BD_FLAG_ROLLOVER_IND))) + return 1; + + return 0; +} + #endif /* _MWIFIEX_PCIE_H */ -- cgit v1.2.3